- an amplifier that is usually the final amplification stage in a device and is designed to give the required power output
WordReference Random House Unabridged Dictionary of American English © 2020
pow′er am′plifier, [Elect.]
- Electricityan amplifier for increasing the power of a signal.
Collins Concise English Dictionary © HarperCollins Publishers::
power amplifier n
'power amplifier' also found in these entries (note: many are not synonyms or translations):